bash递归xtrace

Question

有没有办法运行bash脚本X,以便如果X调用可执行的bash脚本Y然后Y由'sh -eux'开始？

X.sh:

./Y.sh

Y.sh:

#!/bin/sh
echo OK

Answer 1

通过导出SHELLOPTS环境变量,可以使用父级中设置的相同shell选项来创建子shell运行.

在你的情况下X.sh,并Y.sh不能编辑,我想创建一个包装脚本,仅仅出口SHELLOPTS之前调用X.sh.

例:

#!/bin/sh
# example X.sh which calls Y.sh
./Y.sh

.

#!/bin/sh
# example Y.sh which needs to be called using sh -eux
echo $SHELLOPTS

.

#!/bin/sh -eux
# wrapper.sh which sets the options for all sub shells
export SHELLOPTS
./X.sh

X.sh直接调用显示-eux未设置选项Y.sh

[lsc@aphek]$ ./X.sh 
braceexpand:hashall:interactive-comments:posix

通过它调用它wrapper.sh表明选项已传播到子壳.

[lsc@aphek]$ ./wrapper.sh 
+ export SHELLOPTS
+ ./x.sh
+ ./y.sh
+ echo braceexpand:errexit:hashall:interactive-comments:nounset:posix:xtrace
braceexpand:errexit:hashall:interactive-comments:nounset:posix:xtrace

在GNU bash上测试,版本3.00.15(1) - 发布.因人而异.